package hust.ioic.oa.service;

import java.util.Collection;
import java.util.List;

import hust.ioic.oa.base.BaseDao;
import hust.ioic.oa.domain.Department;

public interface DepartmentService extends BaseDao<Department>{

	List<Department> findTopList();
	List<Department> findChildren(Integer parentId);
	List<String> findAllNames();



}
